Finding the Fourth Proportional to 436,912.38, 655,346.70 and 121,372.02
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Solution
The fourth proportional to 436,912.38, 655,346.70 and 121,372.02 is: 182,051.95
Step by Step Solution
- Step 1: Write the proportion equation
436,912.38 : 655,346.70 = 121,372.02 : x - Step 2: Convert to fraction form
436,912.38/655,346.70 = 121,372.02/x - Step 3: Cross multiply
436,912.38x = 655,346.70 × 121,372.02 - Step 4: Simplify right side
436,912.38x = 79,540,752,779.33 - Step 5: Solve for x
x = 79,540,752,779.33/436,912.38 - Step 6: Final answer
x = 182,051.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.